Data processing apparatus, and control method and storage medium therefor
AssigneeCanon Kabushiki Kaisha
InventorTadahiro NAKAMURA
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Abstract
A data processing apparatus capable of efficiently collecting information useful for network failure analysis. If image data transmission to a host computer has failed, a packet acquisition start instruction is given from a data transmission control unit to a packet acquisition control unit. Subsequently, image data is retransmitted to the host computer. After completion of the image data retransmission, a packet acquisition termination instruction is given to the packet acquisition control unit.
Claims6
A data processing apparatus able to communicate with an information processing apparatus via a network, comprising:
- an acquisition unit configured to acquire packets flowing through the network;
- a retransmission unit configured to perform data retransmission in a case where data transmission to the information processing apparatus via the network has failed;
- a control unit configured to cause said acquisition unit to start acquiring packets;
- and
- a setting unit configured to set a number of times the data retransmission can be performed by said retransmission unit,
- wherein the data retransmission is performed a number of times not more than the number of times set by said setting unit, and said acquisition unit acquires packets at least when any of data retransmissions is performed.
A control method for a data processing apparatus able to communicate with an information processing apparatus via a network, comprising:
- an acquisition step of acquiring packets flowing through the network;
- a retransmission step of performing data retransmission in a case where data transmission to the information processing apparatus via the network has failed;
- a control step of starting packet acquisition in said acquisition step;
- and
- a setting step of setting a number of times the data retransmission can be performed in said retransmission step,
- wherein the data retransmission is performed a number of times not more than the number of times set in said setting step, and packets are acquired in said acquisition step at least when any of data retransmissions is performed.
Dependencies are inferred from the claim text.